YS1RS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: El Salvador Most frequent locator attributed to this token: EK53

Receiver-side FT8 activity involving YS1RS, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-27.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 28 FT8 messages attributed to YS1RS as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

20m · 28

First attributed message: 2026-08-27
Last attributed message: 2026-08-27 04:18 UTC

Observed FT8 message patterns

Attributed sample: 28 messages
Active dates: 1 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -14 to -7 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 6.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with YS1RS in decoded directed-looking exchanges:

EA3EDU · Spain OH2MWH · Finland R3MW · European Russia R6TA · European Russia RA6ABC · European Russia RD4WM · European Russia RI1FJL · Franz Josef Land RK9UE · Asiatic Russia RW1AI · European Russia SV1DBY · Greece SV5BYP · Dodecanese UA3PHB · European Russia

Most frequent locator attributed to YS1RS

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: EK53
SO8OO receiver locator: KN09VW
Locator-centre separation: 10,285 km (approx.)
Last such locator decoded: 2026-08-27 03:48 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	YS1RS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 01:10	40m	- / -12	FS4WBS	-2 / -	2	✓ Closing fragment
08-27 04:29	20m	- / -17	VK3LV	-14 / -	2	Partial capture
08-27 04:21	20m	- / -17	VK3LV	-13 / -	6	Partial capture
08-27 04:19	20m	- / -	RV6AJJ	0 / -	2	Partial capture
08-27 04:18	20m	- / -	IX1HPN	-15 / -	3	Partial capture
08-27 04:17	20m	-6 / -	US5HL	- / -11	2	Partial capture
08-27 04:17	20m	- / -18	RM6J	+2 / -	2	Partial capture
08-27 04:15	20m	-9 / -	OH2MWH	- / -14	2	✓ Closing fragment
08-27 04:15	20m	-8 / -17	VK3LV	-13 / -17	8	✓ Full exchange observed
08-27 04:14	20m	-9 / -	UA3PHB	- / -18	3	✓ Closing fragment
08-27 04:14	20m	- / -	RA6FSV	-3 / -	8	Partial capture
08-27 04:13	20m	-11 / -	Z34K	- / -10	2	✓ Closing fragment
08-27 04:12	20m	- / -	RA4CA	-2 / -	4	Partial capture
08-27 04:11	20m	-12 / -14	RD4WM	-20 / -12	7	✓ Full exchange observed
08-27 04:10	20m	- / -	VJ2Q	-14 / -	2	Partial capture
08-27 04:10	20m	-14 / -	SV1DBY	- / -8	2	✓ Closing fragment
08-27 04:09	20m	-12 / -	RW1AI	- / -19	2	✓ Closing fragment
08-27 04:08	20m	- / -15	RX9WN	-5 / -	4	Partial capture
08-27 04:08	20m	-18 / -12	SV5BYP	+1 / -	4	✓ Closing observed
08-27 04:07	20m	- / -	RA4CA	-19 / -	3	Partial capture
08-27 04:03	20m	- / -16	RX9WN	-14 / -	3	Partial capture
08-27 03:59	20m	- / -16	R6TA	-2 / -	8	✓ Closing fragment
08-27 03:59	20m	-12 / -14	RA6ABC	+16 / -	7	✓ Closing observed
08-27 03:58	20m	- / -16	RD4WM	-18 / -	5	Partial capture
08-27 03:57	20m	- / -24	RY7F	-3 / -	41	Partial capture
08-27 03:56	20m	-13 / -	RZ6L	- / -15	2	Partial capture
08-27 03:54	20m	- / -20	R3MW	-15 / -	9	✓ Closing fragment
08-27 03:53	20m	- / -	R6TA	+12 / -	3	Partial capture
08-27 03:53	20m	- / -20	RA3TKS	+12 / -	3	Partial capture
08-27 03:53	20m	- / -	RZ4AZ	-7 / -	3	Partial capture
08-27 03:52	20m	- / -14	RD7LC	+8 / -	4	Partial capture
08-27 03:52	20m	- / -	RA6FSV	0 / -	5	Partial capture
08-27 03:48	20m	-10 / -11	RI1FJL	-8 / -	3	✓ Closing observed
08-08 04:15	40m	- / -	DL3TC	-14 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m

UTC    dB Audio  Message
041530 -12 1466  YS1RS DL3TC JO50 (x2)
011015  -1  920  YS1RS FS4WBS -12 (x2)
011115 -15 2244  YS1RS IK1ZOF JN35

20m

UTC    dB Audio  Message
041900  -4 2179  YS1RS RY7F R-25
041900  -2 2000  YS1RS RV6AJJ KN94 (x2)
041930 -20 1791  YS1RS IX1HPN JN35
042000  +0 2179  YS1RS RY7F R-25
042000 -11 1791  YS1RS IX1HPN JN35
042030  -4 2179  YS1RS RY7F R-25
042100 -14  734  YS1RS VK3LV R-17 (x8)

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